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How Spain ranks worldwide on dormant space, the transfer market, routing security and address density.
APNIC-measured end-user deployment.
Paper holder: holds 372.5M /48 blocks but only 9.8% of users are IPv6-capable.
Clean prefixes (valid RPKI + IRR, no mismatch).
Cumulative IPv4, IPv6, and ASN allocations to Spain over time.
The largest autonomous systems registered to Spain by IPv4 footprint.
Spain against its land-border neighbours on IPv4, IPv6, AS numbers and per-capita density.
Share of announced address space covered by valid Route Origin Authorizations.
1,164 autonomous systems registered to Spain. Click an AS for detail.
| AS15704ES | AS15704 XTRA TELECOM S.A. | 960.8K | 368 |
| AS12338ES | EUSKALTEL Euskaltel S.A. | 658.2K | 118 |
| AS29119ES | SERVIHOSTING-AS AIRE NETWORKS DEL MEDITERRANEO SL UNIPERSONAL | 631.6K | 412 |
| AS12334ES | R Cable y Telecable Telecomunicaciones, S.A.U. | 443.4K | 37 |
| AS200845ES | AVATEL-AS AVATEL TELECOM, SA | 355.1K | 463 |
| 256 |
| 65.5K |
| 2 |
| AS202018ES | Servinet Servinet Sistemas y Comunicacion S.L. | 256 | — | 1 |
| AS210605ES | ITENCORE IT ENCORE TECNOLOGIA SL | 256 | — | 1 |
| AS41994ES | Credito-y-Caucion ATRADIUS CREDITO Y CAUCION SA, DE SEGUROS Y REASEGUROS | 256 | — | 1 |
| AS49212ES | REALE-SEGUROS-AS REALE SEGUROS GENERALES, S.A | 256 | — | 1 |
| AS213909ES | FUNCIONALIA SERVYTEC NETWORKS, S.L.U. | 256 | — | 1 |
| AS25544ES | EROSKI Eroski Scoop. | 256 | — | 1 |
| AS205457ES | Wisp_Tachira Valor Information Technologies, S.L. | 256 | 65.5K | 2 |
| AS204248ES | Edgar_Torres_Llavero Edgar Torres Llavero | 256 | — | 1 |
| AS216003ES | TVTRUJILLO TELEVISION TRUJILLO S.L. | 256 | — | 1 |
| AS15608ES | Banco Inversis S.A. | 256 | — | 1 |
| AS200380ES | ASIMAGAR Imagar Informatica SL | 256 | — | 1 |
| AS35167ES | PROTEC Promocion Tecnologica y Comercial S.A. | 256 | — | 1 |
| AS204695ES | asservan MARIA JOSEFA SILVERO PARRA | 256 | — | 1 |
| AS13137ES | AGENCIAEFE-AS AGENCIA EFE SA | 256 | — | 1 |
| AS210055ES | ELECTROPUERTOSUR FIBERPLUS COMUNICATIONS, SL | 256 | — | 1 |
| AS214986ES | ASNERI1 ENERI CLOUD SISTEMAS, SL | 256 | — | 1 |
| AS211262ES | andamur GP Limite Andamur SL | 256 | 2 | 3 |
| AS203012ES | gestioniza FIBRITEL TELECOMUNICACIONES SL | 256 | — | 1 |
| AS199312ES | Megavista Free Technologies Excom S.L. | 256 | — | 1 |
| AS212957ES | HUCAME-AS Hucame Telecom Networks SLU | 256 | — | 1 |
| AS209618ES | as-HolaMundo_MX Valor Information Technologies, S.L. | 256 | 65.5K | 2 |
| AS206826ES | ABERTISAUTOPISTAS ABERTIS AUTOPISTAS ESPANA, S.A | 256 | — | 1 |
| AS212230ES | VIESGO VIESGO INFRAESTRUCTURAS ENERGETICAS S.L. | 256 | — | 1 |
| AS48868ES | SERES-AS SOCIEDAD DE EXPLOTACION DE REDES ELECTRONICAS Y SERVICIOS, SA | 256 | — | 1 |
| AS197483ES | ADSYSTEMS-AS SYSAD IT SERVICES SL | 256 | 16 | 2 |
| AS215894ES | BLANCATEL BLANCATEL, S.L. | 256 | — | 1 |
| AS199889ES | cvip Cvip Soluciones Tecnologicas Alternativas Sl. | 256 | 524.3K | 2 |
| AS208726ES | ASFIATC FIATC MUTUA DE SEGUROS Y REASEGUROS | 256 | — | 1 |
| AS31164ES | LABESTEVE-AS ESTEVE PHARMACEUTICALS SA | 256 | — | 1 |
| AS9052ES | Unidad Editorial SA | 256 | — | 1 |
| AS202915ES | CUSTOS-AS CUSTOS messium SLNE | 256 | — | 1 |
| AS201359ES | YMEDIANET IPROSPECT ADVERTISING S.A. | 256 | — | 1 |
| AS208823ES | SILME Servei de Informatica Local de Menorca | 256 | — | 1 |
| AS202169ES | SCANSAT-AS AVATEL TELECOM, SA | 256 | — | 1 |
| AS51555ES | ASN-PREFERENCE PREFERENCE SL | 256 | — | 1 |
| AS202324ES | casva CASVA SEGURIDAD, S.L. | 256 | — | 1 |
| AS204134ES | INCServers Jose Socrates Reviejo Bermejo | 256 | 1 | 2 |
| AS47312ES | ZIPPINGCARE-AS Zipping Care S.L. | 256 | — | 1 |
| AS216060ES | carino Carino Servicios Empresariales SL | 256 | — | 1 |
| AS204654ES | ASAGROSEGURO AGRUPACION ESPANOLA DE ENTIDADES ASEGURADORAS DE LOS SEGUROS AGRARIOS COMBINADOS SA | 256 | — | 1 |
| AS16373ES | MOEVE MOEVE SA | 256 | — | 1 |
| AS49638ES | CATNIX Consorci de Serveis Universitaris de Catalunya | 256 | 1 | 2 |
| AS9094ES | LYNTIA_MSP_INTERNAL LYNTIA NETWORKS S.A. | 256 | — | 1 |
| AS211345ES | ValldignaLive Toni Plana i Peris | 256 | — | 1 |
| AS24580ES | SUPSA SUPSA SUPERMERCATS PUJOL SL | 256 | — | 1 |
| AS212116ES | VentoRede Vento Rede, S.L. | 256 | — | 1 |